CVE-2020-21573
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAn issue was discoverered in in abhijitnathwani image-processing v0.1.0, allows local attackers to cause a denial of service via a crafted image file.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · low confidenceA denial of service vulnerability exists in abhijitnathwani image-processing library v0.1.0 where processing a specially crafted image file can cause the application to crash or become unresponsive. The vulnerability is locally exploitable, requiring the attacker to supply a malicious image file to the affected software.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 0.1.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check if image-processing library is installedRun 'pip show image-processing' or check your requirements.txt/dependencies file for the 'image-processing' package from abhijitnathwaniAffected if The library is present in your environment or dependencies
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Verify the installed versionRun 'pip show image-processing' and look for the Version field, or run 'pip list | grep image-processing'Affected if Version equals 0.1.0 exactly
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Confirm image processing is actually usedSearch your codebase for imports like 'import image_processing' or 'from image_processing import' and verify the image processing functions are called in your application logicAffected if Your code imports and calls functions from this library to process images
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Check if user-supplied images can reach the libraryReview your application code to see if image files from external sources (uploads, API requests, user-provided paths) are passed to the image_processing library functionsAffected if Your application processes image files that originate from users or untrusted sources using this library
You are affected if the image-processing library version 0.1.0 is installed and your code uses it to process image files from user or external sources.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataSince the library version v0.1.0 appears to be unmaintained, users should migrate to a actively maintained image processing library with security updates. If continued use is required, implement strict input validation and resource limits on image processing operations to mitigate DoS risks.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-21573 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2020-21573 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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